| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Ranger Investigation & Security Services Pte Ltd | Island Wide | In-House | SS | SS | Admiralty |
| GATES PCM Integrated Services Pte Ltd | Island Wide | - | OE | SS | Pasir Ris |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SO | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | SO | Tampines |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| SATS Ltd | Island Wide | - | OM | SS | Woodlands |
| Aedge Services Pte Ltd | Island Wide | - | OM | CSO | Sengkang |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | CSO | Sengkang |
| SATS Ltd | Island Wide | - | OM | CSO | Sengkang |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Sengkang |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Aedge Services Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Woodlands |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSO | Jurong East |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSO | Jurong East |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| Inhouse Employer | Island Wide | - | OE | SS | Pioneer |
| Securus Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Pioneer |
| SATS Ltd | Island Wide | - | OM | SS | Pioneer |
